Dealey Plaza in Dallas to go quiet at time Kennedy was shot

(CNN) -- Bagpipers set the mood on a gray morning in
Washington on Friday as President John F. Kennedy's last living sibling
participated in a wreath-laying ceremony commemorating the anniversary
of his death to an assassin's bullet in Dallas 50 years ago.

The ceremony, featuring
Jean Kennedy Smith, was preceded by a solemn visit to Arlington National
Cemetery by Attorney General Eric Holder, setting off a nationwide day
of commemorations of Kennedy's death.

As it did five decades
ago, the nation's attention will settle on Dealey Plaza in Dallas, where
a moment of silence is planned at the moment Kennedy was shot....